Question

question: peyton owns a small business selling used books. she knows that in the last week 19 customers paid cash, 25 customers used a debit card, and 24 customers used a credit card. based on these results, express the probability that the next customer will pay with a debit card or a credit card as a decimal to the nearest hundredth.

Explanation:

Step1: Calculate total number of customers

The total number of customers in the last - week is the sum of those who used a debit card, credit card and paid cash. So, $19 + 25+24=68$ customers.

Step2: Calculate probability of using a debit card

The probability $P$ that a customer used a debit card is the number of customers who used a debit card divided by the total number of customers. $P=\frac{25}{68}\approx0.37$.

Answer:

$0.37$